CN107103020A - Method and apparatus for accessing the process data for being stored in server - Google Patents

Abstract

The invention discloses the illustrative methods and device for accessing the process data for being stored in server.Disclosed illustrative methods include receiving the request via web browser access process data；At least one of server of the identification storage process data, wherein the server is associated with interoperability data encapsulation format；The server is accessed to receive the process data；The process data is converted into network browsing form from the form associated with the interoperability data encapsulation format；And at least Part I of the changed process data is embedded at least one data field for the display via the web browser.

Description

Method and apparatus for accessing the process data for being stored in server

The application is divisional application, and the applying date of its original application is on March 24th, 2011, Application No. 201110078339.X, entitled " being used for the method and apparatus for accessing the process data for being stored in server ".

Technical field

The present invention relates generally to Process Control System, more particularly, to the process that server is stored in for accessing The method and apparatus of data.

Background technology

Such as control system, manufacturing automation system and for example in chemical industry, oil or other works used during other Industry system, can store data in server to allow authorized user from any position to access data.Generally, can be by Data storage is in the server for meeting OPC.OPC is for for providing to industrial stokehold data, automation data, manufacture number According to, and/or the server of access of batching data define one group of standard of the interface based on agreement.OPC also be with industry The interoperability definition format standard of data encapsulation in the associated server of process.

At present, by creating the application for the data type for being exclusively used in opc server or being stored in opc server, client Opc server can be connected to.Executable program is written as example, be able to will be applied with procedure programming language.Process Character is programmed Language meets the specific operating platform and communication protocol of corresponding opc server.Can be by exclusively for specific opc server The server provider or client-vendor for configuring application create application.In client access may be needed to be stored in multiple In the example of the data of opc server, it may be necessary to create the application of separation to meet opc server for each opc server Specific interface requirement.If in addition, be stored in the Data Migration of corresponding opc server to another server, or if The interface requirement of opc server changes, then may need to change each in those applications.

The content of the invention

Describe the illustrative methods and device for accessing the process data being stored in server.In an example In, method includes receiving the request via web browser access process data；At least the one of the identification storage process data Partial server, wherein the server is associated with interoperability data encapsulation format；And the access server comes Receive the process data.Illustrative methods also include by the process data from the interoperability data encapsulation format phase The form of association is converted to network browsing form；And by least Part I of the changed process data be embedded in Few one data word section, for the display via the web browser.

Exemplary means include adapter, and it is used to recognize storage and the request via web browser access process data At least one of server of associated process data, wherein the server is related to interoperability data encapsulation format Connection；And adapter is additionally operable to access the server to receive the process data.Exemplary means also include converter, its For the process data to be converted into network browsing form from the form associated with the interoperability data encapsulation format； And network interface, it is used at least a portion of the changed process data being embedded at least one data Field, for the display via the web browser.

Brief description of the drawings

Fig. 1 shows the block diagram of control environment, wherein exemplary control system is communicably coupled to opc server, should Opc server can be accessed by client by the web page server including wrapper (wrapper).

Fig. 2 is the functional diagram of Fig. 1 example wrapper.

Fig. 3 shows to show the exemplary interfaces of server identification process data in a web browser.

Fig. 4 shows to show the exemplary interfaces of server hierarchical directory in a web browser.

Fig. 5 shows to show the exemplary interfaces of process data in a web browser.

Fig. 6 shows to communicate with showing showing for process data in a web browser with Fig. 1 and/or 2 example wrapper Example property interface.

Fig. 7 A and 7B show that display communicates with showing process in client application with Fig. 1 and/or 2 example wrapper Exemplary interfaces on the wireless device of data.

Fig. 8 shows to show the exemplary interfaces of process data in a web browser.

Fig. 9 A-9C and 10 can be used for realizing Fig. 1 and/or Fig. 2 example web page server, exemplary OPC services Device, example wrapper, network interface, the flow chart of the illustrative methods of OPC converter, and/or adapter.

Figure 11 can be used for realizing the side of the illustrative methods being described herein as and the example processor system of device Block diagram.

Embodiment

Although the illustrative methods for being included in the software performed on hardware and/or firmware together with miscellaneous part are described below And device, it should be noted that what these examples were merely exemplary, and be not considered as restricted.For example, it is envisioned that hardware, soft Part and firmware component any one or all can be uniquely with hardware, uniquely with software or with any of hardware and software Combination is implemented.Therefore, although illustrative methods and device are described below, but those of ordinary skill in the art will readily recognize that Arrive, the example provided is not the sole mode for realizing such method and apparatus.For example, although with reference to and/or meet OPC Illustrative methods and device are described, but can be by any other and can be used for commercial Application, manufacture application, process control Illustrative methods and device are transplanted using the interoperability data encapsulation format of, automation application etc..

At present, OPC foundations disclose one group of OPC specification, which define procedural interface, can be by web browser And/or server of the application of client-side program for accessing storing process data.These interfaces are according to can be in server The method and/or example of interior startup is limited.In addition, OPC specifications provide that request can be transferred to from the server related to OPC Client application parameter.OPC specifications, which are defined, can use with such as, such as C++, Visual Basic's and/or C# Procedural and the interface of different agreements write.

In order to access those servers, it is the executable program write with procedural that current client, which is created, Using with the agreement for the OPC interface for meeting those servers.Create those applications and provide access for one or more users, But regardless of the position of user, with reading, write-in, and/or subscription procedure data and/or times that can be stored in opc server What other kinds of data.It can be operated on any computing device (for example, personal computer, notebook, smart mobile phone etc.) Those applications, can be in any position access process data (for example, object) so as to obtain user.In other examples, using can It is stored in using the webpage as customization in associated opc server, the fortune of the web page access of the customization in opc server Framework, database, and/or other data sources during row.Authorized user can visit via any equipment that can be connected to internet Ask the application.

Using that can have predefined data field, it is cross-referenced to the directory location in opc server.It should answer With can be with the type (for example, object type) of Kernel-based methods data specifically to show (for example, the text field, figure, chart, electricity Subdatasheet etc.) preformatting data field.Furthermore, it is possible to be that the specific platform of opc server and/or communication protocol are created Client application.For example, being encoded usually using the address corresponding to desired opc server to client application.By In the feature coded by those and to the reference in opc server in-list position, client application be typically it is static and It can only be communicated with a specific opc server.

Due to each portion with the application for being exclusively used in each opc server and/or for the data from opc server The application divided, client (for example, process plant operator or engineer) may need to research and develop substantial amounts of application to access one Or the data on multiple opc servers.Additionally, if to opc server interface be modified, the data on opc server Catalogue is modified, and/or if process data is migrated to different opc servers, then corresponding application must be altered to Reflect or adapt to the change.It periodically have to update and apply to access the process data on opc server, this can result in Client may not access process data situation.Additionally, the change of process data position can result in application with It is stored in break link between the process data on opc server.

The illustrative methods and device being described herein as enable client application in client location via packaging Device accesses any opc server.By being shown based on the process data establishment data field and/or data by client request Show, example wrapper is operated as the interface between client and opc server.In some instances, wrapper can To be included in opc server, and it can be come by client via web server application and/or client display application Access.In other examples, wrapper can be installed at client (for example, associated with client and/or user Computing device).In other example, wrapper can be included in and be communicatively coupled between client and opc server Computing device (for example, server) in.

Example wrapper may be implemented as web server application and/or client display application.The webserver Using being framework (for example, ASP.NET frame applications), it creates to have and is embedded in client and web browser can be used to access Data field, figure, chart, spreadsheet etc. process data webpage.In the example of web server application, packaging Process data (for example, object) in device administration web page.On the contrary, client display application (for example, Active X controls and/ Or Silverlight^TMUsing) be can be shown as in web browser operation when apply (for example, plug-in application) frame Frame.In those examples, client shows that application can be installed on the computing device of client location.Work as web browser Access positioned at opc server wrapper and/or with positioned at the wrapper of opc server communicate when, can be in web browser Interior startup client display application.Additionally, client show application can configure the data from wrapper that are received and/ Or data field information, it is displayed on so as to data in the data field in web browser, figure, chart, spreadsheet etc..

Example wrapper can include the adapter for being used to communicate with one or more opc servers.Adapter can be with It is used to and OPC using transmission control protocol (TCP), HTTP (HTTP), and/or extensible markup language (XML) Server communication accesses the process data by client request.Example wrapper also includes OPC converter, for that will connect The process data that the OPC from opc server received is formatted is changed to webpage format.Webpage format can include hypertext mark Remember language (HTML) and/or any other be used for client show application interior display form and/or in webpage show The form shown.In addition, wrapper includes network interface, it shows application by process via webpage and/or client The web browser that data transfer can be checked to client.

Example wrapper can be asked by determining one or more types of asked process data Process data (for example, object) is automatically created, configured, and/or format data field.The type of process data can include Server identification information, file directory organizational information, numeric data, string data, the status data of control device, alarm number According to, and/or with any other associated data such as Process Control System, manufacture system.In some instances, wrapper can be with Data type is determined by the metadata of telescopiny data and/or the metadata associated with process data.Other one In a little examples, wrapper can determine data type with the content of Kernel-based methods data.By determining data type, example package Device, which can create the suitable data field with corresponding process data, is used for the display in web browser.For showing The data field of data can include spreadsheet, the text field, numeric field, figure, chart, animation etc..In an example In, wrapper can be with the display type of the type of Kernel-based methods data and/or process control information (for example, smart mobile phone network Browser or work station browser) template of the selection based on XSL conversion (XSLT).

By being automatically created data field and filling (for example, embedded) those data words with the process data asked Section, example wrapper eliminates client request to create-specifically apply come the need for accessing the data on opc server. Because example wrapper is based on data type dynamically format data field, any change of opc server and/or OPC Any change of the position of process data in server does not influence the ability of client access process data.In other words, it is objective Family end need not must be known by opc server be how to be managed, process data be in opc server how to be allocated, Process data is type how to be migrated, and/or process data, it becomes possible to access process data.In addition, because network is clear Look at device via wrapper can with access process data, client need not create clearly be tied to communication protocol, interface protocol, And/or the application of operating protocol or specific opc server.Additionally, can be any opc server implementation example packaging Device is but regardless of the agreement associated with opc server.In addition, because example wrapper not with specific opc server agreement Binding, so specifically being applied than opc server, wrapper efficiently can be installed and/or repaired.

Fig. 1 is the block diagram for showing to control environment 100, wherein, Exemplary control system 102 is communicatively coupled to can be by Open packing agreement (the Open Packaging that client 106 is accessed via the web page server 108 including wrapper 110 Convention) server 104.Although web page server 108 and/or wrapper 110 are illustrated to be communicatively coupled to receive to come From the opc server 104 of the process data of control system 102, but web page server 108 and/or wrapper 110 can be coupled To other opc servers for receiving the process data from other systems, manufacturing facility, automation installation, industrial system etc..It is attached Plus ground, although example OPC server 104 is illustrated to be communicatively coupled to control system 102, but opc server 104 can be with It is communicatively coupled to other control system.In addition, example control environment 100 can include additional client (not shown), It can be communicatively coupled to opc server 104 via web page server 108 and/or other web page server (not shown).

Exemplary control system 102 can include any kind of manufacturing facility, process equipment, automation installation it is any The process control structure or system of type, and/or any other type.In some instances, control system 102 can include position In multiple facilities of diverse location.Additional, although Exemplary control system 102 shows Process Control System 112, but controls System 102 can include additional Process Control System.

Example process control system 112 is communicatively coupled to controller 114 via data/address bus 116.Process control system System 112 can include any amount of field apparatus (for example, input and/or output equipment).Field apparatus can include can Receive input, produce any kind of process control modules of output, and/or control process.For example, field apparatus can include Input equipment such as, such as the valve of control process, pump, fan, heater, cooler and/or blender.Additionally, it is existing Field device can include output equipment such as, for example for the temperature sensor of part of measurement process, pressure gauge, densimeter, Liquid level gauge, flowmeter, and/or vapor sensor.Input equipment can receive the instruction from controller 114, to perform spy Fixed order, and cause the change of process.In addition, output equipment can be with measurement process data, environmental data, and/or input Device data, and measured data are sent to controller 114 be used as process control information (for example, process data).Should Process data can include the value corresponding to the variable of the measured output for coming from each field apparatus (for example, measured Process variable and/or measured quality variable).

In Fig. 1 shown example, example controller 114 can be via data/address bus 116 and Process Control System 106 Interior field apparatus communication.The data/address bus 116 can be coupled to the communication component in Process Control System 112.Communication set Part can include I/O cards, to receive the data from field apparatus, and extremely can be by example controller by data conversion 114 communication medias received.Additionally, those I/O cards can extremely can be corresponding by the data conversion from controller 114 The data format of field apparatus processing.In one example, field bus protocol can be used or it is other kinds of wired and/ Or wireless communication protocol (for example, Profibus agreements, HART protocol etc.) realizes data/address bus 116.

Controller 114 is coupled to opc server 104 via any wired and/or wireless connection communication.At some In example, connection can include fire wall and/or other security mechanisms, for limiting the access to controller 114.Once control Device 114 processed receives the process data from Process Control System 112, and controller 114 can be just sent process data to OPC clothes Business device 104.In other examples, controller 114 can be with periodic time interval (for example, per minute, per hour, daily Deng) send process data to opc server 104.Alternatively, opc server 104 can be from the requested number of passes of controller 114 According to.

Once receiving process data, process data is stored in file system by Fig. 1 example OPC server 104.Can With the equipment in Kernel-based methods control system 112 and/or based on operation in controller 114 come management process control system 112 Routine (for example, using and/or algorithm) arranges this document system in the way of the classification with catalogue and/or subdirectory.At it In his example, file system can be arranged by the operator of control system 102.Process data can be stored to associated mesh Parameter in record and/or subdirectory.In some instances, parameter can be associated with operating in the routine on controller 114 Variable, or the variable associated with the field apparatus output in Process Control System 112.Parameter can include description with being somebody's turn to do The metadata of the type of the associated process data of parameter.

An end points can be each allocated in catalogue, subdirectory, file and/or parameter.Opc server 104 also may be used To be allocated an end points.It can be accessed according to secure access, read access, subscription and/or write-access divides those end points Group.End points can include that device 110 can be packaged to access address, the binding of the process data for being stored in opc server 104 Element, and/or agreement element (contract element).Wrapper 110 can use end points to access process data, such as beautiful Described in the patent application of state's number of patent application 12/637,439, and include entire contents by quoting herein.

Fig. 1 example wrapper 110 is included in web page server 108.Web page server 108 is as in OPC Interface between server 104 and client 106 and the equipment operated and/or application.In some instances, web page server 108 can be included in opc server 104 as interface.In other examples, web page server 108 can be installed in In computing device at client 106.In some other example, web page server 108 can by client 106 communicatedly Realized on server or other computing devices coupled to opc server 104.Example wrapper in web page server 108 110 receive the request of the access process data (for example, object) from client 106, from the requested number of passes of opc server 104 According to, process data changed to the form that can be checked to client, and create and/or format data field carrys out telescopiny number According to for being shown in web browser.Example wrapper 110 can also include security feature, such as, for example, user recognizes Demonstrate,prove and/or encrypt to ensure that only authorized user can check and/or access process data.

In order to access opc server 104, example wrapper 110 includes adapter 118.Example adaptor 118 can be with Using TCP, HTTP, and/or the communication based on XML, for coming via any wired and/or wireless connection and OPC takes Business device 104 communicates.Wrapper 110 also includes OPC converter 120, for the process data conversion that will be received by adapter 120 To the form (for example, template based on XSLT) that can be checked via web browser.Example wrapper 110 also includes being based on net The interface 122 of network, for being provided to client 106 for formatting, presenting, embedded and/or display process data interface.

Exemplary client 106 can be with that can be authorized to reading, write-in, and/or subscription store in opc server 104 Process data individual be associated.Client 106 can also with can be from the control of remote location access opc server 104 The associated personnel of system 102 processed are associated.Client 106 can use any wired and/or wireless communication media (example Such as, internet) opc server 104 is accessed via web page server 108.

In the example for the request that access process data (for example, object) are produced in client 106, wrapper 110, which is received, to be come From the request message of client 106.Especially, network interface 122 can receive the request.Once receive request, base Adapter 118 is forwarded the request in the interface 122 of network.Adapter 118 is using the information in request (for example, unified resource Locator (URL) destination address) store the opc server (for example, opc server 104) of asked process data to recognize. Then, adapter 118 accesses opc server 104 to fetch process data.According to the interoperability data encapsulation corresponding to OPC Form, process data can be stored in opc server 104.Adapter 118 can use the end associated with process data Point is accessed and/or reading process data.Then, adapter 118 turns the process data from opc server 104 of reception OPC converter 120 is sent to, it is clear that process data is converted to network by it from the form associated with interoperability data encapsulation format Look at form.Then, the process data changed is forwarded to network interface 122 by OPC converter 120.Subsequently, based on net At least a portion for the process data changed is embedded in and/or placed to one or more corresponding data by the interface 122 of network Field (or template), for being shown via web browser in the webpage that can be checked by client 106.

By following steps, process data can be embedded in one or more data fields by network interface 122：It is logical The data type associated with process data is crossed to divide changed process data；Which kind of data type and data field determined It is associated；Data field is created for every kind of data type；And place the data associated with every kind of data type to associated Data field in.By determining the metadata associated with each part of process data, and metadata is cross-referenced to Associated data field, network interface 122 can determine data type according to process data.

Exemplary network interface 122 can formatting procedure data, so that client 106 uses client application 124 can check process data.Fig. 1 example shows to show process data in the interface 126 that can relate to web browser Client application 124.Client application 124 can include web server application and/or client display application.By creating Webpage and/or access templates webpage and by data field place or be embedded in webpage, wrapper 110 can be the webserver Application formatted process data.Access is asked and responded by using html is stored in wrapper 110 and/or web page server 108 webpage, interface 126, via web browser, can then show process data.Alternatively, by network browsing Start network application at the client application 124 that can perform in device (for example, interface 126) (for example, ActiveX, Adobe Flash^TM, and/or Silverlight^TM), wrapper 110 can show application formatted process data for client.At some In example, client 106 can download and/or install client display application before process data is checked.Wrapper 110 will Process data and/or data field send to client and show application.In some instances, wrapper 110 is by process data Sending to before client display application is associated process data with corresponding data field.Once process data is received, visitor Family end shows to apply and creates (for example, presentation) display (for example, interface 126) in web browser to check corresponding data word Process data in section.

In addition, by changing data field and/or display process data in web browser, client 106 can determine Client application 124 processed.For example, client 106 can specify the position of the display data field in web browser.In addition, The color for the process data that client 106 can be changed in data field, text size, numerical value are represented and/or any other Figure is represented.

Client 106 can access opc server 104 to read, write, and/or subscription procedure data.Subscription procedure number According to that can include receiving the mandate from example wrapper 110 and/or opc server 104, to be transmitted across in controller 114 Number of passes according to when, receive cycle the and/or continuous renewal of asked process data.Reading process data can include reading It is stored in the currency of the process data of opc server 104.Ablation process data can include receiving from client 106 Value, the parameter that process data is stored in opc server 104 is turned to for changing or becoming.Writing data also includes change State, alarm and/or the mark associated with process data.Once receiving write-in value, example OPC server 104 can be by Write-in value is sent to controller 114, come change and/or change procedure control system 112 operation.In order that obtaining client 106 Process data is able to access that, example wrapper 110 can be realized including encryption, certification, integrity detection code, and/or user The security feature of specific access control list.In the case of user and/or the uncommitted access process data of client 106, Example wrapper 110 can only provide to the read access of process data or, alternatively, can not provide any to crossing number of passes According to access.

Fig. 2 is the functional block diagram of Fig. 1 example wrapper 110.Wrapper 110 includes Fig. 1 adapter 118, OPC and turned Parallel operation 120 and network interface 122.Multiple visitors can be each facilitated in functional block in Fig. 2 wrapper 110 Family end and/or opc server or, alternatively, wrapper 110 can include being used for each communicatively coupled opc server Functional block and/or the functional block for each client (for example, client 106).

Control is accessed in order to provide such as encryption and/or end points to the communication with client 106 and/or client application 124 The safety measure of system, Fig. 2 example wrapper 110 includes safe processor 202.Example security processor 202 can be wrapped Include, for example, encryption processor and/or digital signature maker, for preventing outside communication by the third party of unauthorized. Encryption processor can use any kind of encryption coder, by the communication formatting that destination is client application 124 For the non-readable form of unauthorized user.Digital signature maker causes the communication of client application 124 from by unauthorized Third party alter.Digital signature maker can use the security signature maker of any kind of encryption (for example, hash Code), it makes it possible to the value that detection is changed by the third party of the unauthorized between client application 124 and wrapper 110.It is attached Plus ground, safe processor 202, which can include other forms, include the communication security of authentication mechanism and/or access control.Example Property safe processor 202 can solve it is code encryption, and/or signature, come from the logical of client application 124 and/or client 106 Letter.Once decoded communications, safe processor 202 will communicate and send to the intended destination in wrapper 110.

In the example in figure 2, safe processor 202 is communicatively coupled to include one or more clients of client 106 End.By identification information, safe processor 202, which can be filtered, comes from client and/or other individual request messages, so as to only There is authorized client to access the process data in desired opc server.In addition, safe processor 202 can be by mistake Number of passes evidence and/or data field are forwarded to the client realized in client application 124 and show application.In other examples, Safe processor 202 cause client 106 and can store display process data webpage network interface 122 it Between being capable of secure communication.

In order to manage the data communication between one or more clients and exemplary network interface 122, Fig. 2 Example wrapper 110 include conversation controller 204.Exemplary session controller 204 is the client communicated with wrapper 110 Hold (for example, Fig. 1 client 106) management access session.Access session represent network interface 122 and client it Between open communication path.Can be that the client for each accessing network interface 122 creates access session, because each Client can ask to access the different data sources and/or data type from different opc servers.Therefore, it is exemplary Conversation controller 204 ensures that network interface 122 provides only its process data asked to client.

Conversation controller 204 starts session after the request message of the access process data from client is received.Please Asking can be in the form of the request via web browser and/or via client application 124.Until session is by session control Device 204 is opened, and conversation controller 204 can refuse any other request from client.When session open, session control Each request message from client is routed to network interface 122 by device 204 processed.Additionally, conversation controller 204 The reading associated with its to selected process data can be stored or the reference of end points is write, the reading or write-in end points can With associated with the data field and/or process data that can be checked in webpage.

Be included in exemplary network interface 122 in Fig. 2 wrapper 110 by management, format and/ Or configuration process data to provide interface to client.Network interface 122 receive it is from OPC converter 120, with The process data (for example, object) for the form that can be checked in web browser.Exemplary network interface 122 is also Handle the request of the access process data from client.Once receive the request from client, network interface 122 By sending instructions to conversation controller 204 and forwarding the request to adapter 118 come initiated access session.In some examples In son, after safe processor 202 determines that request is associated with the client of certification, network interface 122 is received please Ask.Additionally, when client is closed and/or terminates web browser and/or when client application sends the commands to terminate meeting During words, network interface 122 can close access session.

When network interface 122 receives the process data associated with request, network interface 122 passes through Process data is forwarded to data processor 206, to determine the one or more data types associated with process data.Example Property data processor 206 identification can be included in the metadata in the part of process data.Alternatively, data processor 206 Access data type data storehouse 208 to based on Value Types that can be associated with process data, property, types of variables, and/or times Process data is cross-referenced to corresponding data field by what other identifier.Exemplary data types database 208 can With by electrically erasable programmable ROM (EEPROM), random access memory (RAM), read-only storage (ROM) and/ Or the memory of any other type is realized.

By once it is determined that the data type associated with process data, by process data distribute to it is one or more can be with It is cross-referenced to the data display variable of the data field of data type, Fig. 2 exemplary data processor 206 is by number of passes According to associated with data field and/or use data field configuration process data.Data processor 206 and/or network connect Mouth can also store the numeral, alphanumeric, and/or mark value of process data to suitable data field.

In addition, data processor 206 can access data type data storehouse 208 to be used to show process data to obtain Template.Template can include changing XML information (for example, process data) to HTML being used for what is shown in a web browser XSLT templates.Data processor 206 can with the type of Kernel-based methods data, the value of process data, the property of process data and/ Or target display information selection template.Target display information can identify the type of web browser and/or for showing process The type of the equipment of data.For example, target display information can indicate process data will be shown in smart mobile phone network it is clear Look on device or will be shown on the web browser of work station.Template for smart mobile phone can be formulated into with Relatively small display screen display process data is compared in the template of the web browser of work station.

Network interface 122 receives the data type of the process data from data processor 206 and with process Data compilation data field.Subsequently, based on network interface 122 can by process data (for example, with respective data field phase The part compiled of the process data of association) it is embedded in and/or places into the suitable data field of template.By according to number Carry out partition process data according to type, determined using information and/or template from data processor 206 which kind of data type with Data field is associated, and is that every kind of data type creates data field, and associated with every kind of data type is crossed into number of passes According to placing to associated data field, network interface 122 is partially submerged into process data to data field.One In a little examples, data field can be associated with more than one data type.Can be by subsequently, based on the interface 122 of network Process data is embedded in the webpage including data field.

In client client application (for example, client application 124) can be used to come in the example of request process data, Exemplary network interface 122 determines the type of application.The agreement associated with request message and/or application by recognizing Language and/or any metadata associated with the client application in request message, network interface 122 can be determined The type of client application.For example, can be included using the client of web server application associated with ASP.NET applications Agreement, and show that the client of application can include and Silverlight using client^TMOr ActiveX^TMUsing associated Agreement and/or message.Type based on client application, exemplary network interface 122, which is created and/or configured, to be adapted to Web browser and/or procedural interface process data is shown in data field.

Once it is determined that client application type, network interface 122 and/or data processor 206 are display format Change process data, and/or data field.In the example associated with web server application of client application 124, based on net The interface 122 of network is received from client 106 via web browser and asked, and is forwarded the request to adapter 118 and is carried out access process Data, and receive the process data from OPC converter 120.Can via the request from client 106 of web browser To be in the form of html document.In addition, network interface 122 can send instructions to conversation controller 204, will The web browser of client 106 is associated with the access session newly created.The establishment of interface 122 subsequently, based on network has The webpage of data field including process data.Data field can include, for example, list, spreadsheet, figure, chart, figure Shape is represented, animation etc..Furthermore, it is possible to specify the position of data field by template.Will subsequently, based on the interface 122 of network The content of webpage is sent to the web browser of client 106, and webpage is shown at client location.Web browser is by net Process data in page is passed with the content formatted via any HTTP, XML, XSLT, and/or any other internet webpage Transport format is sent to client 106.

In web browser includes the example that client shows application, exemplary network interface 122 is via net Network browser receives the request from client 106, forwards the request to adapter 118 to access process data, receives and From the process data of OPC converter 120, and start the display application of the client in web browser.Via web browser The request from client 106 can be in the form of method call (method call).Once format and/or configure Process data, network interface 122 sends process data with the associated form of the agreement that application is shown with client To client.Then, client, which is shown, creates display in the web browser applied at client location, to show in correlation Process data in the data field of connection.

Client shows that application can include any procedural client, and in some instances, it can be without network Browser can just access network interface 122.In those examples, network interface 122 is by procedural visitor Family end is associated with the access session newly created, and by the process data asked and/or data field via with it is procedural The associated any protocol forward of client to client.Then, procedural client is created in associated data word The display of process data is shown in section.

Exemplary network interface 122 provides read access, write-access, and/or subscribed to and accesses to client.It is right In the client of request read access, network interface 122 is that single request is forwarded to adaptation by current process data Device 118.Once receiving and formatting procedure data, network interface 122 provides asked process to client application Data.

Alternatively, when client request subscribe to access when, network interface 122 message in cycle can be sent to Adapter 118, to receive process data with time interval.In some instances, client can be specified for receiving process The time interval of data.In addition, being that procedural application creates webpage and/or display configuration in network interface 122 Afterwards, network interface 122 for it is the data field cycle and/or it is continuous renewal newer process data is provided.It is based on The interface 122 of network provides renewal via maintenance with the client communication of request, already active access session.To data Updating for field can include with renewal tendency chart, the process shape of the newest process data for being stored in corresponding opc server State alarm, and/or mark.Therefore, network interface 122 causes client without refresh network browser and/or cycle Ground request process data, it becomes possible to access newest process data.

In client can ask other examples of write-access, exemplary network interface 122 passes through Html document or method request receive the ablation process data value from webpage and/or procedural application.Subsequently, based on network The identification of interface 122 with writing the associated variable of data value.In some other example, network interface 122 can be with Data processor 206 is accessed, data value is cross-referenced to data type specified in data type data storehouse 208.With Afterwards, network interface 122 sends instructions to OPC converter 120 and/or adapter 118, and data value is forwarded to The suitable variable of opc server and/or part.Then, opc server can store write-in data value and/or will write number The suitable position in controller is forwarded to according to value.

Exemplary network interface 122 can store client customized information to database (not shown), with During the process data of convenient identical client request same type next time, network interface 122 can be based in part on The process data that the customization of client previously comes in format data field.Network interface 122 can according to it is any more Change identification client customization, these changes are implemented by client by web browser and/or procedural application, to change number According to the outward appearance and/or data display of the process data in field.Client can with the color of change procedure data, text size, Numerical value is represented and/or any other figure is represented.

In order to access opc server (for example, opc server 104), Fig. 2 example wrapper includes adapter 118. Example adaptor 118 can use TCP, HTTP, XML, and/or any other host-host protocol, by it is any wired and/ Or wireless connection communicates with opc server.Adapter 118 receives the access opc server from network interface 122 Request.Once receiving request, adapter 118 recognizes storing process data by accessing OPC server reference database 210 Opc server, client request is cross-referenced into specific opc server.Example OPC server reference data Storehouse 210 can be realized by EEPROM, RAM, ROM, and/or the memory of any other type.

In some instances, client request can include the network address and/or the identifier of opc server.Adapter 118 may be referred to OPC server reference database 210 to position asked opc server.In some instances, adapter 118 can access two or more opc servers, to access asked process data.Once opc server is positioned, adaptation Device 118 sends the request to opc server with request process data.By the catalogue for the OPC data for determining to be stored in server And/or file structure, adapter 118 can access the process data on opc server.Adapter 118 can by the catalogue and/ Or file structure relays to network interface 122, to enable a client to via web browser and/or procedural Using the one or more catalogues of selection and/or subdirectory.By selecting catalogue and/or subdirectory, client, which is specified, to be expected to be looked into The process data seen and/or be accessed.In some other example, client can include the catalogue of desired process data And/or the position of subdirectory.In other examples, client can with specifying variable title, process data identifier, and/or Any other data identification information, adapter 118 can use those data identification informations to browse opc server, to visit Ask asked process data.

Use distributed end points, example adaptor 118 may browse through the catalogue of opc server, subdirectory, and/or File.For example, adapter 118 can access OPC server reference database 210, to recognize the end corresponding to opc server Point.Then, opc server can be accessed based on classification, read access, write-access, and/or subscription and be back to end points and mistake Number of passes is according to associated adapter 118.Then, adapter 118 can determine which end points is related to the process data asked Connection, and using those end points browse and/or position the position of opc server memory storage process data.

In the example that adapter 118 receives the reading and/or subscription instruction from network interface 122, adaptation Device 118 can access corresponding reading and/or the subscription end points that the process data with being asked is associated.In addition, in client In the example at interval that cycle for receiving process data (for example, subscription procedure data) can be specified, adapter 118 can be with To the desired process data of opc server poll on the interval in cycle.

Process data value can be write into other examples of data field in client, adapter 118, which is received, to be come From the value and/or associated value identifier of network interface 122.Then, adapter 118 browses opc server (example Such as, using write-in end points), to position the file and/or directory location associated with the data value of write-in.Then, adapter 118 Write-in value is stored to the suitable position to opc server.It can be write in some examples of value in client, adapter Value can be changed to OPC forms reception by 118 in OPC converter 120 from the form of webpage and/or procedural application Value.

Fig. 2 example adaptor 118 include enable adapter 118 from can be with different agreements, interface, operation The function of system, and/or the different opc server connection and/or communications of file system operation.OPC server reference Storehouse 210 can include the reference of pair agreement associated with each opc server, interface, operating system, and/or file system. Then, when adapter 118 recognizes opc server to be visited, adapter 118 can use associated with opc server Agreement, interface, operating system, and/or file system, compatibly to communicate and/or be connected with opc server.

Once asked process data is received and/or accessed from opc server, example adaptor 118 is by number of passes According to being forwarded to OPC converter 120.Fig. 2 example OPC converter 120 is by process data from any OPC and/or relevant packing Form change to the form that can be checked in web browser and/or any other procedural application.Once incited somebody to action Journey data conversion is to network browsing form and/or the procedural application form of any other type, and OPC converter 120 is by institute The process data of conversion is forwarded to network interface 122.In addition, OPC converter 120 can be received from network The write-in value and/or process data of interface 122.In those examples, OPC converter 120 will write the network browsing lattice of data Formula and/or procedural application form are changed to adapter 118 and can used will write data storage to opc server OPC forms.OPC converter 120 can use any application that can be specified by OPC and/or any other packing agreement, frame Frame, data transformation algorithms etc..

Although figure 2 illustrates the exemplary approach for realizing wrapper 110, interface, data knot shown in Fig. 2 One or more of structure, element, process and/or equipment can be combined, separate, rearranging, omitting, removing and/or with Any other mode is realized.For example, example security processor 202, exemplary session controller 204 shown in Fig. 2, exemplary Network interface 122, exemplary data processor 206, exemplary data types database 208, example OPC converter 120th, example adaptor 118, and/or example OPC server reference data storehouse 210 can be used for example by one or more Machine-accessible or readable instruction that computing device and/or calculating platform (for example, Figure 11 exemplary processing platform P10) are performed Discretely and/or with any combinations to realize.

In addition, example security processor 202, exemplary session controller 204, exemplary network interface 122, Exemplary data processor 206, exemplary data types database 208, example OPC converter 120, example adaptor 118th, example OPC server reference data storehouse 210 and/or more generally, wrapper 110 can pass through hardware, software, firmware And/or any combinations of hardware, software and/or firmware are realized.Thus, for example, example security processor 202, exemplary meeting Talk about controller 204, exemplary network interface 122, exemplary data processor 206, exemplary data types database 208th, any one in example OPC converter 120, example adaptor 118, example OPC server reference data storehouse 210 Individual and/or more generally, wrapper 110 can be by one or more circuits, programmable processor, application specific integrated circuit (ASIC), programmable logic device (PLD) and/or field programmable logic device (FPLD) etc. are realized.In addition, except Fig. 2 Outside shown or shown in alternate figures 2, Fig. 2 example wrapper 110 can include one or more elements, process and/ Or equipment, and/or can be including any one in more than one shown element, process and equipment or whole.

Fig. 3 shows to show the exemplary interfaces 300 of server identification process data in a web browser.Interface 300 Style sheet and/or template can be referred to as.Interface 300 is shown as application widget.However, in other examples, interface 300 The navigation feature associated with web browser and/or any other procedural client can be included.In addition, although show Example property interface 300 is shown as a kind of mode that process data is shown in data field, but can be created others and be shown Example property interface shows process data.

Fig. 3 example shows to show the interface of the server identification information associated with server nature tab 302 300.Interface 300 includes navigation panel 304 and database 306.Plate 304 and 306 can be preconfigured to be for showing number of passes According to common template.Then, Fig. 1 and/or 2 example wrapper 110 can use template or style sheet to arrange and/or embedding Enter data field and associated process data.For example, database 306, which can be preconfigured to be, shows related to process data The variable and/or parameter name (for example, attribute) and data value (for example, value) of connection.Then, wrapper 110 can by with clothes The associated data field of business mark is embedded in and/or placed to attribute column and/or value column.For example, description opc server title Process data can be identified as " server name " attribute with value " OPC DA servers ".

Client can be accessed by the way that the network address and/or Internet protocol (IP) address are inputted to web browser The process data shown in interface 300.Then, web browser can navigate to Fig. 1 wrapper 110 and/or webpage clothes Business device 108.The network address and/or IP address are resolved to the opc server shown in interface 300 by wrapper 110.Then, Wrapper 110 can obtain the process data associated with opc server, and process data is changed to network browsing form, known The data type of other process data, selects the template associated with interface 300, and process data is embedded in into interface 300 and warp Interface 300 is shown to client by web browser.In this example embodiment, wrapper 110 is associated with data value by recognizing Attribute metadata, carry out the type of determination process data.Then, wrapper 110 can create the data corresponding to Property Name The list of value.

Example navigation panel 304 shows the catalogue and/or text of the opc server identification information associated with opc server Part structure.Client may browse through the bibliographic structure in navigation panel 304, to select and be shown in the clothes of the OPC in database 306 The associated process data of device information of being engaged in.Client can be by selecting other catalogues in navigation panel 304 selectively to look into See other OPC server datas.Example wrapper 110 can obtain the bibliographic structure (for example, process from opc server Data) and using navigation panel 304 template come the config directory structure in data field.

Fig. 4 shows to show the exemplary interfaces 400 of server hierarchical directory in a web browser (for example, pattern It is single).Layered directory is shown by selecting object tree tab 402 and layered directory can represent to be stored in opc server The data structure of process data.Fig. 1 and/or 2 example wrapper 110 obtains the layered directory knot for being stored in opc server Structure, by data conversion to network browsing form, and determines the data type associated with data structure.Then, wrapper 110 In data field in configuration, tissue and placement layered directory to navigation panel 404.Client may browse through in navigation panel 404 Catalogue select to include the catalogue and/or subdirectory of desired process data.Control can be reflected with organizational hierarchy catalogue The structure of the structure of equipment in system and/or the control routine operated by controller.Example wrapper 110 can use end Dot address browses bibliographic structure, and in a web browser provides layered directory to client.

Exemplary interfaces 400 also include filter 406, for filtering any mesh based on the input provided by client Record.Interface 400 also includes database 408, and it is that selected catalogue is shown including variable and/or parameter name (for example, category Property) and corresponding process data value (for example, value) data field.In the example in fig. 4, client selection PID1 catalogues.Cause This, wrapper 110 obtain the process data associated with PID1 catalogues and in order to by web browser in database 408 Display telescopiny data.

Fig. 5 shows to show the exemplary interfaces 500 of process data in a web browser.By selecting data list to select Item card 502 shows process data in a web browser.Once client selection data list tab 502, Fig. 1's and/or 2 The acquisition process data of example wrapper 110.Interface 500 includes subscribing to plate 504 and database 506.Based on can be arranged in data The type for the process data being acquired in table options card 502, can be pre-configured with the layout of plate 504 and/or 506.

Subscribe to the refresh rate that plate 504 enables a client to specify the process data being shown in database 506.In the example In son, client specifies the turnover rate of 5000 milliseconds (msec).Subscribing to plate 504 also includes client identifier (for example, client Id), OPC server identifier (server I d), and selected refresh rate (for example, turnover rate).

Example data plate 506 shows selected process data, and it includes the catalogue of the process data in opc server Position (for example, example ID), data value (for example, data value), the state (for example, state code) and process of process data The time (for example, timestamp) that data are created.Database 506 includes button, for the adding procedure data from display or Process data is removed.Database 506 also includes button, for reading or ablation process data.

In the example of fig. 5, wrapper 110 is determined, process data to be shown in spreadsheet with that can be shown Being shown as the data type of value is associated.In other examples, process data can be displayed on figure, chart, animation, figure and indicate In symbol etc..For example, database 506 in interface 500 can be pre-configured with, if so that some process datas are related to figure shows Join, then wrapper 110 can call the figure shows being pre-configured with to show process data in suitable data field.

Fig. 6 shows to communicate with showing the exemplary interfaces of process data in a web browser with example wrapper 110 600.Exemplary interfaces 600 include navigation bar 602, operator can make to use it to input field device name for check with The associated process data of the field apparatus.In another example, user can be used similar to catalogue described in conjunction with Figure 4 Layered directory position field apparatus.Interface 600 also includes menu bar 604, and it includes being used for and TT101 field device interfaces Option.In this example embodiment, it have selected manual configuration option.

Fig. 6 exemplary interfaces 600 can provide the target display information of wrapper 110, and it is indicated and TT101 field apparatus In the browser that associated process data will be displayed on work station or notebook computer.Additionally, once selecting or defeated Enter field apparatus (for example, object), example wrapper 110 receives field device name (for example, TT101).Wrapper 110 makes Recognized with field device identification symbol the type (for example, object type) of field apparatus, the property associated with field apparatus, And/or the process data (for example, value) associated with field apparatus.Wrapper 110 uses this with target display information Information selects template, for showing process data in data field.Wrapper 110 also uses the information to take from OPC Business device access process data.By accessing data type data storehouse 208 and being positioned for running network browsing on a workstation The template of device, wrapper 110 can select template.Then, wrapper 110 can the device type based on TT101 field apparatus Reduce stencil-chosen scope.Then, wrapper 110 can select the data field in the template corresponding to process data.

In the example of fig. 6, wrapper 110 can provide template 606 and template 608 to interface 600.Template 606 and 608 Including with the process data associated with TT101 field apparatus (for example, simulation input (AI), % scopes, unit, lower limit, on Limit, label, date and descriptor) data field.Process data is matched by the metadata in Kernel-based methods data And suitable data field is inserted into, example wrapper 110 can be presented on the process data shown in template 606 and 608. In other examples, template can be represented including figure, chart, figure, and/or any other data.

Fig. 7 A and 7B show to be shown in communicate with showing in client application with Fig. 1 and/or 2 example wrapper 110 Show the exemplary interfaces 700 on the wireless device 702 of process data.Wireless device 702 can be set including any portable calculating It is standby, including, for example, smart mobile phone, personal digital assistant (PDA), networking telephone etc..Fig. 7 A and 7B example show be used for for The example wrapper 110 of process data is presented in the template that wireless device 702 is configured.

In fig. 7, user interface 700 includes object search field 704 and keyboard 706.Object search 704 causes user Field apparatus identifier (for example, OPC DA/ equipment/TT101) can be inputted via keyboard 706.Object search field 704 is to bag Fill device 110 and inputted TT101 field apparatus is provided.Additionally, wireless device 702 can send target display information to bag Fill device 100.Wrapper 110 accords with positioning the process data associated with TT101 field apparatus using TT101 field device identifications And/or property.Example wrapper 110 also selects to be shown in wireless device 702 relatively using target display information The template 708 formatted on small display screen.

As shown in Figure 7 B, wrapper 110 can match in the corresponding data field of template 708, insert and present Number of passes evidence.Additionally, wrapper 110 can show the menu bar 710 for navigating to different templates.Menu bar 710 can be with Be included in template 708 and/or can by the navigation associated with OPC DA/ equipment/TT101 directory locations process data Specify.Alternatively, the display of menu bar 710 can be managed by client application.Fig. 7 B example shows that wrapper 110 is selected The template 708 formatted for wireless device 702, and the selection of wrapper 110 is the web browser on work station in figure 6 The template 606 and 608 of formatting.

Fig. 8 shows to show the exemplary interfaces 800 of process data in a web browser.Interface 800 includes navigation bar 802, user can use navigation bar 802 to come input file position or the path of process data.Template 804 shows to be shown in data The table of process data in field.Template 804 includes the data field of manufacturer, device type and version.User can carry For HTTP://OPCDASERVER/DEVICE/DEVICECOLLECTION paths access or tracked and are organized in group The associated process data of equipment.Can be from the process data in the template 804 that opc server accesses as XML file：

Exemplary XML file as implied above exists<catalog>Manufacturer, the equipment class of three equipment are listed under row Type and version.In order to show the information in interface 800, XML file can be converted to XSLT by example wrapper 110 File, it specifies the template 804 for showing process data.The XSLT files changed can include：

OK<xsl：Stylesheet version=" 1.0 " xmlns：Xsl=" http://www.w3.org/1999/ XSL/Transform″>Specify the template 804 to be shown in interface 800.Example wrapper 110 can be based on being received Information (for example, target display information, object type etc.) from interface 800 determines the template.XSLT files are also template 804 Specify column heading (for example, manufacturer, device type and version) and specify for process data to be formatted to data word Section in instruction (for example,<xsl:Value-of select=" manufacturer "/,<xsl:Value-of select=" type"/>And<xsl:Value-of select=" version "/>).

Fig. 9 A, 9B, 9C and 10 are can be performed to realize Fig. 1 and/or Fig. 2 example security processor 202, example Property conversation controller 204, exemplary network interface 122, exemplary data processor 206, exemplary data types number According to storehouse 208, example OPC converter 120, example adaptor 118, example OPC server reference data storehouse 210 and/or More generally, the flow chart of the illustrative methods of wrapper 110.Fig. 9 A, 9B, 9C and/or 10 illustrative methods can be by Device, controller and/or any other appropriate processing equipment is managed to perform.For example, Fig. 9 A, 9B, 9C and/or 10 illustrative methods It may be embodied in coded command, the coded command is stored in any tangible computer-readable medium such as flash memory, CD, DVD, soft Disk, ROM, RAM, programming ROM (PROM), electrically programmable ROM (EPROM), electrically erasable PROM (EEPROM), optical storage disc, Optical storage apparatus, magnetic storage disks, magnetic storage apparatus and/or can be used in the form of method or data structure carry Or store program codes and/or instruction and can be by processor, universal or special computer or other machines with processor On any other medium that (for example, the example processor platform P10 discussed below in conjunction with Figure 11) is accessed.Every group above Conjunction is also included within the range of computer-readable medium.

Method is for example including making processor, all-purpose computer, special-purpose computer or dedicated processes machine realize one or many The instruction of individual ad hoc approach and/or data.Alternatively, some or all of Fig. 9 A, 9B, 9C and/or 10 illustrative methods can To be realized using any combinations of ASIC, PLD, FPLD, discreet logic, hardware, firmware etc..

In addition, some or all of Fig. 9 A, 9B, 9C and/or 10 illustrative methods can be alternatively using manually operated Or as any combinations of any aforementioned techniques, such as any combinations of firmware, software, discreet logic and/or hardware are realized. In addition it is possible to use realizing a lot of other methods of Fig. 9 A, 9B, 9C and/or 10 exemplary operation.For example, the execution of block is suitable Sequence can change, and/or one or more described pieces can be changed, remove, segment or combine.Additionally, Fig. 9 A, 9B, 9C and/or In 10 illustrative methods any one or all can sequentially perform and/or for example, by individually processing thread, processing Device, equipment, discreet logic, circuit etc. are performed parallel.

Fig. 9 A, 9B and 9C illustrative methods 900 enable a client to access the number of passes excessively for being stored in opc server According to.Multiple illustrative methods 900 can be performed concurrently or sequentially, for the access process data of multiple client.Additionally, Can be each opc server in the example that the process data asked can be stored in two or more opc servers Implementation example method 900, or alternatively, single illustrative methods 900 can be realized for multiple opc servers.

Fig. 9 A illustrative methods 900 are started (block 902) with receiving the request of access process data.Can be by Fig. 2's Example security processor 202 and/or network interface 122 receive request.Then, illustrative methods 900 ask safety Voucher (for example, safe processor) accesses process data (block 904).Security credence can include username and password, access Code, unique identifier etc..In some instances, security credence can be included in request.Then, illustrative methods 900 determine whether received security credence passes through certification (block 906).If security credence is correct and by certification, Then illustrative methods 900 create with reading, write-in according to the request from client and/or subscribe to the access session accessed (block 908).Then, illustrative methods 900 recognize the opc server associated with request (for example, accessing Fig. 2 opc server The adapter 118 in reference data storehouse 210) (block 910).

However, if illustrative methods 900 are not able to verify that security credence (block 906), illustrative methods 900 can be created Only there is the access session (block 912) of read access.Then, illustrative methods 900 recognize the opc server associated with request (block 910).Alternatively, if illustrative methods 900 are not able to verify that security credence (block 906), illustrative methods 900 can be refused The process data of exhausted client access request.

Fig. 9 A illustrative methods 900 are by accessing the opc server (block that (for example, via adapter 118) is recognized 914) continue with one or more catalogues (block 916) associated with request are accessed.Additionally, in the OPC data asked In the example of more than one opc server, illustrative methods 900 can be positioned positioned at one or more opc servers Interior catalogue and/or file (block 916).Illustrative methods 900 can use end points, via manual customer navigation terminal, and/or logical The information being provided in the request from client is crossed, to position asked process data.Accessing asked process After the position of data, then, illustrative methods 900, which are received, reads, writes, and/or subscribes to asking for asked process data Ask.In some instances, the request of access process data can include reading, write-in, and/or the request of subscription procedure data. In other examples, client can send another request and come via reading, write-in, and/or subscribe to function access process data.

Fig. 9 B illustrative methods 900 determine request (block whether associated with reading, writing, and/or subscribing to function 918).If request is to want reading process data (block 918), illustrative methods 900 from associated opc server by obtaining Asked process data (for example, via adapter 118) is taken to continue (block 920).Then, illustrative methods 900 are by process Data are changed to network browsing and/or the form of procedural application (for example, via OPC converter 120) (block from OPC forms 922)。

However, if request is to want subscription procedure data (block 918), illustrative methods 900 are by subscribing to opc server In, the process data asked continues (block 924).Asked most by setting to send request message to opc server The time interval of new process data, illustrative methods 900 can be with subscription procedure data.Once subscription procedure data, exemplary Method 900 obtains asked process data (block 920) from opc server.In addition, illustrative methods 900 can continue with institute The interval specified obtains asked process data from opc server.Subsequently for each acquisition of process data, exemplary side Method 900 changes process data to network browsing and/or the form of procedural application (for example, turning via OPC from OPC forms Parallel operation 120) (block 922).

However, if request is to want ablation process data (block 918), illustrative methods 900 are by receiving by client Data value simultaneously is changed to the value (for example, via OPC converter 120) of OPC formattings to continue (block by the write-in data value of offer 926).Suitable Data Position that then, illustrative methods 900 write process data value in opc server (for example, via Adapter 118) (block 928).Then, illustrative methods 900 can read the process data of the write-in in opc server and incite somebody to action Process data is changed to network browsing form (block 922).Illustrative methods 900 can read back write-in value, to be provided to client Write-in value is compatibly write the evidence of opc server.

Once process data is changed to OPC forms, illustrative methods 900 are by determining the number associated with process data Continue (block 930) according to type (for example, via data processor 206).Then, Fig. 9 C illustrative methods 900 determine to come from Whether the request of client applies (for example, application of sequencing) associated (block with web server application or client display 932).If client request is associated with web server application, illustrative methods 900 create for every kind of data type And/or configuration data field (for example, via network interface 122) (block 934).Then, illustrative methods 900 are by process Data are embedded in and/or placed to corresponding data field, and compile the process data in data field (block 936).Then, Illustrative methods 900 realize the data for including process data in the webpage accessed by the web browser of client operation The display (block 938) of field.

However, if the request from client applies associated (block 932) with client display, Fig. 9 C's is exemplary (block 944) is applied in client display at method call client.Client display application is called to may include turn on by client End is for the application in the web browser of access process data (for example, ActiveX or Silverlight^TMOr application).Call Client shows that application can also include the application of initialization program to receive the process data and/or data word of formatting Section.Then, illustrative methods 900 receive from client show application request, the request indicate the application be called and It is ready to receive process data (block 946).Then, illustrative methods 900 be embedded in and/or place and/or association process data extremely Data field (block 948), and process data and/or data field are sent to client display using (block 950).It is exemplary Method 900 is also based on the type of process data and/or the display type of process data selects template for data field.Once Process data is received, subsequent illustrative methods 900 ensure that client shows application configuration data field, and being shown in client should Corresponding process data (block 952) is shown in interface and/or display.

Fig. 9 C illustrative methods 900 by determine client whether customization procedure data and/or data field it is any Continue (block 940) part.If illustrative methods 900 determine that client does not have customization procedure data and/or data field, Illustrative methods 900 return to the request (block 902) that access process data are received from identical and/or different client.However, such as Fruit illustrative methods 900 determine client customization procedure data and/or data field, then the storage of illustrative methods 900 customization number According to (block 942).Illustrative methods 900 store customized information, to access identical mistake in different time when identical client Number of passes according to when, process data can be shown with the form of customization.Then, illustrative methods 900 are returned to from identical and/or difference Client receive access process data request (block 902).

Figure 10 illustrative methods 1000 determine the template for showing the process data from opc server received And/or data field.Multiple illustrative methods 1000 can concurrently or sequentially be performed that the template of multiple client is presented.It is attached Plus ground, can be each OPC in the example that the process data asked can be stored in two or more opc servers Server implementation example method 1000, or alternatively, single illustrative methods 1000 can be realized for multiple opc servers.

Figure 10 illustrative methods 1000 check the request of object (for example, process data) to be received in wrapper 110 And start (block 1002).Object can include field apparatus and/or the process data associated with field apparatus.Illustrative methods 1000 (for example, via network interfaces 122) can recognize the target display information (block 1004) associated with asking.Mesh Mark display information can be included in request in and/or can by web browser or client application it is separated send. Then, illustrative methods 1000 (for example, via network interface 122, adapter 118, and/or data processor 206) The type (block 1006) of the asked object of determination, the determination property (block 1008) associated with object, and/or access process number According to (for example, value associated with object) (block 1010).With reference to described in Fig. 9 A-9C, access process data include accessing OPC services Device.

Illustrative methods 1000 based on object type, property, process data, and/or target display information by determining (example Such as, via data processor 206) it is used to show the template of object to continue (block 1012).Illustrative methods 1000 (for example, through By network interface 122) can be by object (for example, process data) link and/or the corresponding number being inserted into template According in field.Then, illustrative methods 1000 (for example, via network interface 122) are presented in selected template Object and/or the process data (block 1014) associated with object.Illustrative methods 1000 via network (for example, connect 122) mouth shows object and/or the process data (block 1016) associated with object in the template being shown in interface.Example Property method 1000 (for example, via network interface 122) may determine whether additional object (block to be shown 1018).If illustrative methods 1000 determine there is additional object, illustrative methods 1000 receive additional object (block 1002).If illustrative methods 1000 determine that additional object is not present, illustrative methods 1000 terminate.

Figure 11 can be used for realizing the example processor system P10 of examples described herein method and apparatus frame Figure.For example, can be used for realizing showing for Fig. 1 and/or 2 similar or identical to example processor system P10 processor system Example property safe processor 202, exemplary session controller 204, exemplary network interface 122, example data processing Device 206, exemplary data types database 208, example OPC converter 120, example adaptor 118, and/or exemplary OPC server reference database 210 and/or more generally, wrapper 110.Although example processor system P10 below by It is described as including multiple ancillary equipment, interface, chip, memory etc., one or more of those elements can show from other Omitted in example property processor system, other example processor systems are used for implementation example safe processor 202, exemplary meeting Talk about controller 204, exemplary network interface 122, exemplary data processor 206, exemplary data types database 208th, one in example OPC converter 120, example adaptor 118, and/or example OPC server reference data storehouse 210 It is individual or multiple and/or more generally, wrapper 110.

As shown in figure 11, processor system P10 includes the processor P12 for being coupled to interconnection bus P14.Processor P12 bags Register group or register space P16 are included, it is described as on complete piece in fig. 11, but can be alternatively complete or partial Ground is located at outside chip and is directly coupled to processor P12 by special electrical connection and/or by interconnection bus P14.Processor P12 Can be any appropriate processor, processing unit or microprocessor.Although figure 11 illustrates system P10 can not be many Processor system, and therefore can include the same as or similar to processor P12 and be communicably coupled to one of interconnection bus P14 Or multiple extra processors.

Figure 11 processor P12 is coupled to chipset P18, and it includes Memory Controller P20 and peripheral input/output (I/O) controller P22.As is known, the commonly provided I/O of chipset and memory management functions and it is multiple general and/or Special register, timer etc., it can be accessed or be used by the one or more processors for being coupled to chipset P18.Storage Device controller P20, which is performed, makes processor P12 (or multiple processors, if multiple processors) be able to access that system is stored Device P24 and mass storage P25 function.

System storage P24 can include the volatibility and/or nonvolatile memory of any desired type, for example, quiet State random access memory (SRAM), dynamic random access memory (DRAM), flash memory, read-only storage (ROM) etc..Large Copacity Memory P25 can include the mass storage of any desired type.If for example, example processor system P10 is used for Wrapper 110 (Fig. 2) is realized, then mass storage P25 can be set including hard disk drive, optical drive, tape storage It is standby etc..Alternatively, if example processor system P10 is used for implementation example data type data storehouse 208 and/or exemplary OPC server reference database 210, then mass storage P25 can be including solid-state memory (for example, flash memory, RAM are stored Device etc.), magnetic memory (for example, hard disk) or be suitable for exemplary data types database 208 and/or example OPC server Any other memory of massive store in reference data storehouse 210.

Peripheral I/O controllers P22, which is performed, enables processor P12 to pass through peripheral I/O buses P32 and peripheral input/output (I/O) function of equipment P26 and P28 and network interface P30 communications.I/O equipment P26 and P28 can be any desired types I/O equipment, such as keyboard, display (for example, liquid crystal display (LCD), cathode-ray tube (CRT) display), navigation Equipment (for example, mouse, tracking ball, capacitive type touch pad, control stick etc.) etc..Network interface P30 can be for example to make processor Ethernet device that system P10 can communicate with another processor system, asynchronous transfer mode (ATM) equipment, 802.11 equipment, DSL modem, cable modem, cellular modem etc..

Although Memory Controller P20 and I/O controller P22 is shown in single in chipset P18 in fig. 11 Functional block, the function performed by these blocks can be integrated in single semiconductor circuit, or can be used two or more independent Integrated circuit realize.

Above-mentioned example method and/or device it is at least some one or more soft by what is run on a computer processor Part and/or firmware program are realized.However, including but not limited to application specific integrated circuit, programmable logic array and other hardware are set Standby specialized hardware, which is realized, can be also configured to wholly or partly to realize illustrative methods described here and/or dress Some or all put.In addition, including but not limited to distributed treatment or component/object distributed treatment, parallel processing or void The software of the replacement of plan machine processing is realized and can also be configured to realize illustrative methods and/or system described here.

It shall yet further be noted that example software described here and/or firmware are realized and are stored on tangible media, example Such as：Magnetic medium (for example, disk or tape)；Magneto-optic or optical medium such as CD；Or solid state medium, such as storage card or appearance Receive one or more read-only (non-volatile) memories, random access memory or other rewritable (volatibility) memories Other encapsulation.Therefore, example software described here and/or firmware can be stored in tangible media for example above or after After on the storage medium of the medium of description.Superincumbent specification quote specific standard and agreement describe example components and In the degree of function, it should be appreciated that the scope of this patent is not limited to such standard and agreement.For example, being used for internet and other Packet switched network transmission (for example, transmission control protocol (TCP)/Internet protocol (IP), UDP (UDP)/ IP, HTML (HTML), HTTP (HTTP)) each standard represent the example of this area current state Son.Such Normal periodic by it is with identical general utility functions, faster replace with more effective equivalents.Therefore, Replacement standard and agreement with identical function are contemplated by this patent and are intended to be included in the model of appended claims Enclose interior equivalent.

In addition, although this patent discloses the illustrative methods and device for being included in the software performed on hardware or firmware, It should be noted that what such system was merely exemplary, and be not considered as restricted.For example, it is to be understood that these hardware With any one in software part or all can be uniquely with hardware, uniquely with software, uniquely with firmware or with hard Certain embodied in combination of part, firmware and/or software.Therefore, although description above describes illustrative methods, system and machine Device accessible, these examples are not the sole modes for realizing such system, method and machine accessible medium.Therefore, Although some illustrative methods, system and machine accessible medium is described herein, the coverage not limited to this of this patent. On the contrary, all sides that this patent is covered on literal or is substantially within the purview of the appended claims under the doctrine of equivalents Method, system and machine accessible medium.

Claims (20)

1. a kind of method, including：

Receive and ask from web browser, to access the information stored on the server of Process Control System；

Based on the request identification server, the server is associated with interoperability data encapsulation format；

The server is accessed, to receive the hierarchical directory structure stored on the server, the hierarchical directory structure Including the field device information corresponding to the field apparatus associated with the Process Control System；

The hierarchical directory structure is converted into network browsing from the form associated with the interoperability data encapsulation format Form；And

The hierarchical directory structure changed point is embedded in data field, is used for the display via the web browser to generate Catalogue.

2. according to the method described in claim 1, it is characterised in that the catalogue is wrapped when being shown via the web browser Include the first optional subdirectory and the second optional subdirectory.

3. method according to claim 2, it is characterised in that the first optional subdirectory is related to the first control operation Connection, the second optional subdirectory is associated with the second control operation.

4. method according to claim 2, it is characterised in that the scene of the first optional subdirectory and the first kind is set Standby associated, the second optional subdirectory is associated with the field apparatus of Second Type.

5. method according to claim 2, it is characterised in that the first optional subdirectory is believed including the field apparatus The subset of breath, the subset of the field device information is shown when the described first optional subset is chosen.

6. method according to claim 5, it is characterised in that before the described first optional subset is chosen, do not show The subset of the field device information.

7. according to the method described in claim 1, it is characterised in that the hierarchical directory structure changed is embedded in the data Field includes：

First template of the selection with the data field；

The hierarchical directory structure changed is embedded in the data field of first template, to generate the catalogue.

8. method according to claim 7, further comprises：

Receive and ask from the web browser, to access the process associated with field apparatus listed in the catalogue Data；

The process data is obtained from the server；

The second template is selected, to show the process data；And

The process data is embedded in the data field of second template, with shown via the web browser.

9. method according to claim 8, it is characterised in that the catalogue and the process data will be via the networks Browser is simultaneously displayed.

10. method according to claim 8, it is characterised in that receiving the request with access the process data it Before, show the process data not via the web browser.

11. according to the method described in claim 1, it is characterised in that the hierarchical directory structure includes and the field apparatus In the associated data structure of corresponding field apparatus, wherein the hierarchical directory structure changed is embedded in into the data word Section includes：

It is determined that the data type associated with the data structure；

Determine data type in the data type, associated with the data field；

The data structure is embedded in the corresponding data field in the data field.

12. method according to claim 11, it is characterised in that it is determined that the data type associated with the data field Including：

It is determined that the metadata associated with the data structure；

The metadata is cross-referenced to the corresponding data field in the data field.

13. according to the method described in claim 1, it is characterised in that the interoperability data encapsulation format meets opening and beaten Packet protocol.

14. a kind of device, including：

Adapter, the adapter is used for：

In identification process control system, the information that storage is associated with the request from web browser server；And

The server is accessed to receive the hierarchical directory structure stored on the server, the hierarchical directory structure bag Include the field device information corresponding to the field apparatus associated with the Process Control System；

Converter, for the hierarchical directory structure to be changed from the form associated with the interoperability data encapsulation format For network browsing form；And

Network interface, for the hierarchical directory structure changed to be embedded in into data field, is used for via institute with generating State the catalogue of the display of web browser.

15. device according to claim 14, it is characterised in that when the catalogue is shown via the web browser Including the first optional subdirectory and the second optional subdirectory.

16. device according to claim 15, it is characterised in that the first optional subdirectory and the first control operation phase Association, the second optional subdirectory is associated with the second control operation.

17. device according to claim 15, it is characterised in that the scene of the first optional subdirectory and the first kind Equipment is associated, and the second optional subdirectory is associated with the field apparatus of Second Type.

18. device according to claim 15, it is characterised in that the first optional subdirectory includes the field apparatus The subset of information, the subset of the field device information is shown when the described first optional subset is chosen.

19. device according to claim 18, it is characterised in that described before the described first optional subset is chosen The subset of field device information is not displayed.

20. a kind of machinable medium, the machinable medium includes instruction, the instruction is drawn when executed Play machine and at least carry out following operation：

Receive and ask from web browser, to access the information stored on the server of Process Control System；

Based on the request identification server, the server is associated with interoperability data encapsulation format；

The server is accessed, to receive the hierarchical directory structure stored on the server, the hierarchical directory structure Including the field device information corresponding to the field apparatus associated with the Process Control System；

The hierarchical directory structure is converted into network browsing from the form associated with the interoperability data encapsulation format Form；And

The hierarchical directory structure changed point is embedded in data field, is used for the display via the web browser to generate Catalogue.